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Properties of Materials

  •  English    21     Public
    It is about dissolving, solutions, solubility, and chromatography
  •   Study   Slideshow
  • The substance that dissolves
    Solute
  •  5
  • The substance that it dissolves into
    Solvent
  •  5
  • Are all solutions transparent?
    Yes
  •  5
  • Butter in a frying pan is example of
    Melting
  •  5
  • Sugar in black tea is example of
    Dissolving
  •  5
  • In a cup of coffee, is water the solvent or the solute?
    The solvent
  •  5
  • Solute + solvent, together they will make a ...
    Solution
  •  5
  • A solid that does not dissolve in a liquid
    insoluble
  •  5
  • When we measure the solubility of a solute, we must use the same ... of water
    Volume
  •  10
  • The volume of water is kept the same; The temperature is changed; The number of spatulas used is measured. Which one is the independent variable?
    Temperature
  •  10
  • The volume of water is kept the same; The temperature is changed; The number of spatulas used is measured. Which one is the dependent variable?
    The number of spatulas
  •  10
  • The variables you keep the same
    Control variables
  •  10
  • What name is given to a solution when no more of solute can be dissolved in it?
    A saturated solution
  •  5
  • The technique used to separate out the coloured inks
    Paper chromatography
  •  10
  • The resulting image on the paper when we separate out the coloured inks
    Chromatogram
  •  15
  • Why some inks, such as the ink in permanent marker pens cannot be separated on the paper chromatography soaked in water?
    Because some inks are not soluble in water, we need to use a different solvent, such as alcohol
  •  20